snyder



A. SNYDER.' Cooking Stove.

No. 96,497. Patented Nov. 2,- 1869 In venz'ar N. PETERS. PhmwLHhngnphar. Washmglan. D. c

, ni'iefi som ASA SNYDER, 0F RICHMOND, VIRGINIA.

Letters Patent N 96,497, dated November 2, 1869.

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The Schedule referred to in these Letters Patent and making part of the same.

To all whom z'tmaq concern Be it known that I, Asa SNYDER, of Richmond, 1n the. county of Henrico, and State ofVirginia, have invented a new and useful Improvement in Stoves; and I do hereby declare that the following is a full,

clear, and -exact description of the construction and operation of the same; reference being hadt-o the accompanying drawings, making a part of this specification, in Which- Figure 1 is the front portion of a transverse vertical section; and

Figure 2 is a longitudinal vertical section.

This invention relates to stores for heating or cooking-purposes, having hollow-walled firc chambers, and hollow grates, and perforations in the inner walls of the tire-chambers, for conducting air, in a heated con-. ditiou, to the tire.

The invention consists inproviding, in combination with such hollow-walled lire-chamber aml hollow grate, a, damper, in the flue leading from thehearth to thc gratciin the bottom of the fire-chamber, for the purpose of completely closing such flue, aml preventing cold air from finding access through ittothe fire chamber, and the'hcatcd currents drawn into the same from above.

In the drawings-- A is the fire-chamber, having double walls aa', the space between which receives, through apertures a", in its bottom, the cold air that passes the outer wall of the stove at b, and is discharged into the products of combustion.fi'om the tire, throughthe orifices 10" in the inner wall not the fire-chamber. I

B iszhc hollow grate, receiving external air through its trunnions, l), and discharging it through orifices b", in the under sides of the grate-bars.

A portion also of the external air, received at the apertures 11, also enters the fire atits bottom, through the openings in the bed-plate supporting the grate.

It will be perceived, that; with this construction, there are currents of air, heated by contact with the inner and outer walls a a, of the fire-chamber, continually traversing the hollow spaces surrounding the latter. 7 v

Butitis necessary to have some opening, by which the debris from the grateshall find their way to the hearth, and such opening is afi'orded by thc flue O; and to prevent cold air from entering by this flue, and cooling the heated current-s, I place init a dam per, 0, completely closing it, and only to'be opened for the discharge of the'delu'is.

'By this arrangement, the fire-chamber is sur rounded at the bottom as well as the sides,"-\vith a' hot-air space, aml no cold air can reach it, even though the front doors and dampers be left open.

The damper 0 may be a sliding as well as a revolving one, and may appropriately be termed a separathin-plate.

Havingthns described my invention,

;What I claim as new, and desire to secure by Lettcrs Patent, is-- In combination with the hollawavalled fire-chamber and hollow grate herein described, the separationplate 0, arranged and operating substantially as described.

' ASA SNYDER.

Witnesses:

ALEX; MGWILLIAM, J. B. W001). 

